bento4Bento4 is a C++ class library and tools desned to read and write ISO-MP4 files. In addition to supporting ISO-MP4, Bento4 provides support for multiple DRM systems that are compatibleBento4 is a C++ class library and tools desned to read and write ISO-MP4 files. This format is defined in international specifications ISOIEC 14496-12, 14496-14 and 14496-15. The format